So, one interesting tidbit from the German version: Germany introduced daylight saving time ("Sommerzeit") in 1980, but Switzerland only in 1981. In 1980, Büsi

So, one interesting tidbit from the German version: Germany introduced daylight saving time ("Sommerzeit") in 1980, but Switzerland only in 1981. In 1980, Büsingen used CET (like Switzerland), not the daylight saving time (like the rest of Germany). So, while there was only one summer season of deviation from Germany, Büsingen (pop. 1443) is listed separately in some time zone databases, eg the Common Locale Data Repository. As so often, the devil is in the details.